I don't know how possible that would be Guaran. The decrease in bulk and consignment listings would be nice, but I think the idea behind having series of meals intends for consumption of various patterns of things instead of just buying one lump meal and using it. Having a meal combined into one item would defeat the purpose of having appetizers/sides/main/desserts and remove the possibility of teching foods.
I do like the idea of maybe having one or two "meal" forms that take a large amount of resources to produce, but it seems to me a lot of work to just save people a few bulk of stackable items and simplify a system that is being fleshed out in excruciating detail.